How is This Magnifying Glass? Perfect for the Elderly, Young and Amblyopic Great Magnifier for Seniors, Children and Those Who Have Low or Impaired Vision of Most Types. It's Excellent for Reading Books, Newspapers, Magazines, Maps, User Instructions, Etc and Other Close Works, Such As , Watchmaking, Handcraft and Exploring. Product Magnification: 10X 15X 20X 25X Product Weight: 185 Grams (Including Packaging) Product Size: 200 170 70Mm Color Box Size: 175 115 70Mm Lens Diameter: 21 Mm Product Material: Abs Battery Model: Aaa Batteries (Not Included) Packing Method: Bubble Bag, Chinese and English Manual, Color Box Color: Gray Lens Quantity: 8(2Pcs 10X,2Pcs 15X,2Pcs 20X,2Pcs 25X) Lens Magnifications:10X,15X,20X,25X Objective Lens Size: 15.8Mm Ocular Lens Size: 20Mm Material: Optical Glasses Abs Two Weamanner:Glasses and Head Strap Observing Distance: 20-50Mm(Suggest 30Mm) Head Circumference : About 590Mm Description: Lightweight, Portable and Durable. Anti-Skid Protection Rubber Gasket Comfortable Touch Eight Lens with Changeable Magnifying Multiple Are Attached.(10X,15X,20X,25X) It Can Be Used under Insufficient Light. the Angle of Lens is Adjustable. Led Light Powered by Aaa 3 Batteries (Not Included Batteries ) Press Then Rotate the Battery Cover 30 Degrees to Take Out the Batteries Package Included:Satisfaction Goal: Our Goal is to Provide Creative, Innovative Products So That Everyone Can Have Quality, High-End Enjoyment. We Are Committed to Making Sure You Love Your Purchase, So If for Any Reason You Are Not Satisfied, Please Contact Us and We Will Make Things Right. Material: Optical Lens, Scratch-Resistant, Abrasion-Resistant. the Shatter Resistant Lens with No Smeaand Bluron the Images. Clear Distortion-Free Magnifying Lens. High-Precision Glass Lens Brings Subtle Details. Scope of Application: Student Field Trip, Identification, Inspection and Maintenance, On-Site Observation, Suitable for Children, Adults, Seniors, Amateurs and Professionals.